Welcome to the Cellular Structure Of Bacteria MDCAT MCQs with Answers. In this post, we have shared Cellular Structure Of Bacteria Multiple Choice Questions and Answers for PMC MDCAT 2024. Each question in MDCAT Biology offers a chance to enhance your knowledge regarding Cellular Structure Of Bacteria MCQs in this MDCAT Online Test.
Bacterial cell walls are primarily made of which substance?
a) Cellulose
b) Chitin
c) Peptidoglycan
d) Phospholipids
What is the function of the bacterial flagellum?
a) DNA replication
b) Energy production
c) Movement
d) Protein synthesis
Bacterial DNA is found in which part of the cell?
a) Nucleus
b) Nucleoid
c) Mitochondria
d) Endoplasmic reticulum
What is the primary function of the bacterial capsule?
a) Energy storage
b) Protein synthesis
c) Protection
d) DNA replication
Which of the following structures is not found in bacterial cells?
a) Ribosomes
b) Cell membrane
c) Mitochondria
d) Cytoplasm
The bacterial ribosome has a size of:
a) 70S
b) 80S
c) 60S
d) 90S
Which structure in bacteria helps in the exchange of genetic material during conjugation?
a) Flagella
b) Pilus
c) Capsule
d) Endospore
What is the function of the bacterial plasmid?
a) Energy production
b) DNA replication
c) Carrying antibiotic resistance genes
d) Cell wall formation
Which structure allows bacteria to adhere to surfaces?
a) Capsule
b) Flagella
c) Pili
d) Ribosome
Which of the following bacteria lacks a cell wall?
a) Staphylococcus
b) Escherichia coli
c) Mycoplasma
d) Bacillus
Which part of the bacterial cell is responsible for protein synthesis?
a) Nucleoid
b) Flagella
c) Ribosome
d) Capsule
What is the function of the bacterial cell membrane?
a) DNA replication
b) Energy production
c) Structural support
d) Movement
Which of the following structures is unique to gram-negative bacteria?
a) Peptidoglycan
b) Outer membrane
c) Flagella
d) Nucleoid
What is the role of bacterial endospores?
a) Protein synthesis
b) Nutrient storage
c) Survival in harsh conditions
d) Movement
Which bacterial structure is involved in motility?
a) Ribosome
b) Capsule
c) Flagella
d) Pilus
Which structure gives bacteria their shape and provides rigidity?
a) Ribosome
b) Capsule
c) Cell wall
d) Nucleoid
In bacterial cells, DNA replication occurs in the:
a) Nucleoid
b) Ribosome
c) Flagella
d) Capsule
What type of genetic material is present in the bacterial plasmid?
a) RNA
b) Circular DNA
c) Linear DNA
d) Double-stranded RNA
Which staining technique is used to differentiate bacterial cell walls?
a) Gram staining
b) Acid-fast staining
c) Simple staining
d) Negative staining
Which bacterial structure is responsible for the synthesis of proteins?
a) Flagella
b) Ribosomes
c) Cell wall
d) Capsule
What is the function of bacterial pili?
a) Protein synthesis
b) Cell division
c) DNA exchange
d) Nutrient storage
Which component of the bacterial cell is involved in antibiotic resistance?
a) Ribosomes
b) Pili
c) Plasmids
d) Nucleoid
Which structure is responsible for bacterial attachment to host cells?
a) Ribosomes
b) Pili
c) Endospores
d) Nucleoid
Which bacteria possess a thick peptidoglycan layer in their cell walls?
a) Gram-negative
b) Gram-positive
c) Acid-fast
d) Cyanobacteria
The bacterial capsule is made of:
a) Proteins
b) Lipids
c) Polysaccharides
d) DNA
Which structure in bacteria helps them survive harsh environmental conditions?
a) Flagella
b) Endospore
c) Pili
d) Plasmid
Bacterial cell walls provide:
a) Energy production
b) Structural support
c) Protein synthesis
d) Genetic information
What is the function of the bacterial nucleoid?
a) Protein synthesis
b) DNA storage
c) Cell motility
d) Cell division
Bacterial cells use which structure for horizontal gene transfer?
a) Flagella
b) Ribosome
c) Pilus
d) Nucleoid
Which of the following is absent in bacterial cells?
a) Plasma membrane
b) Ribosome
c) Mitochondria
d) Nucleoid
Which bacterial structure prevents phagocytosis by host cells?
a) Flagella
b) Capsule
c) Ribosome
d) Cell wall
Which type of bacteria have an additional outer membrane besides the cell wall?
a) Gram-positive
b) Gram-negative
c) Cyanobacteria
d) Mycoplasma
Which bacterial structure is responsible for cell division?
a) Pili
b) Ribosome
c) Cell membrane
d) Nucleoid
The function of the bacterial flagella is:
a) Adherence
b) DNA replication
c) Movement
d) Nutrient uptake
Which bacterial structure is involved in the formation of biofilms?
a) Capsule
b) Endospore
c) Pilus
d) Flagella
Which part of the bacterial cell is involved in the synthesis of proteins?
a) Nucleoid
b) Pili
c) Ribosome
d) Endospore
The bacterial cytoplasm contains:
a) Nucleus
b) Golgi apparatus
c) Ribosomes
d) Mitochondria
Which bacterial structure prevents desiccation?
a) Endospore
b) Cell wall
c) Ribosome
d) Capsule
The bacterial cell membrane is responsible for:
a) DNA replication
b) Protein synthesis
c) Selective permeability
d) Movement
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